Description
the standard frequency for hearing-test calibration
Designed to project wave behavior live for an entire class
Five removable sections separate the enlarged ear into outer
5-inch stainless steel rod
Aluminum Leaf Flask Electroscope Stock Type_Stocked the standard frequency for hearing-testGlass flask leaf electroscope with a brass rod and aluminum leaf, deflecting visibly in the presence of a charged object to reveal both charge presence and polarity.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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